1550868480 has 336 divisors, whose sum is σ = 6154241184. Its totient is φ = 353894400.

The previous prime is 1550868463. The next prime is 1550868493. The reversal of 1550868480 is 848680551.

1550868480 is a `hidden beast` number, since 1 + 5 + 508 + 68 + 4 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2580180 + ... + 2580780.

It is an arithmetic number, because the mean of its divisors is an integer number (18316194).

Almost surely, 2^1550868480 is an apocalyptic number.

1550868480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1550868480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3077120592).

1550868480 is an abundant number, since it is smaller than the sum of its proper divisors (4603372704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1550868480 is an equidigital number, since it uses as much as digits as its factorization.

1550868480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645 (or 618 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 45.

The square root of 1550868480 is about 39381.0675325086. The cubic root of 1550868480 is about 1157.5106346800.

The spelling of 1550868480 in words is "one billion, five hundred fifty million, eight hundred sixty-eight thousand, four hundred eighty".